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Date: Tue, 16 Mar 2021 10:36:49 +0100
From: Hans Verkuil <hverkuil@...all.nl>
To: Robert Foss <robert.foss@...aro.org>, agross@...nel.org,
bjorn.andersson@...aro.org, todor.too@...il.com,
mchehab@...nel.org, robh+dt@...nel.org,
angelogioacchino.delregno@...ainline.org,
linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
AngeloGioacchino Del Regno <kholk11@...il.com>,
Sakari Ailus <sakari.ailus@....fi>,
Andrey Konovalov <andrey.konovalov@...aro.org>
Cc: Rob Herring <robh@...nel.org>, Tomasz Figa <tfiga@...omium.org>,
Azam Sadiq Pasha Kapatrala Syed <akapatra@...cinc.com>,
Sarvesh Sridutt <Sarvesh.Sridutt@...rtwirelesscompute.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Jonathan Marek <jonathan@...ek.ca>
Subject: Re: [PATCH v8 09/22] media: camss: Refactor CSID HW version support
On 15/03/2021 16:59, Robert Foss wrote:
> In order to support Qualcomm ISP hardware architectures that diverge
> from older architectures, the CSID subdevice drivers needs to be refactored
> to better abstract the different ISP hardware architectures.
>
> Signed-off-by: Robert Foss <robert.foss@...aro.org>
> Reviewed-by: Andrey Konovalov <andrey.konovalov@...aro.org>
> ---
>
>
> Changes since v1:
> - kernel test robot: Add missing include, interrupt.h
>
> Changes since v4:
> - Andrey: Removed whitespace from some includes
> - Andrey: Removed unused enum
>
> Changes since v5:
> - Andrey: Fixed test pattern selection logic
> - Andrey: Align test mode enum values with v4l mode selection return values
> - Andrey: r-b
> - Move Titan 170 test modes to the the Titan 170 commit
> - Fixed test pattern boundary check
>
> Changes since v7:
> - Hans: Fix checkpatch.pl --strict warnings
>
>
>
> drivers/media/platform/qcom/camss/Makefile | 2 +
> .../platform/qcom/camss/camss-csid-4-1.c | 328 ++++++++++
> .../platform/qcom/camss/camss-csid-4-7.c | 404 ++++++++++++
> .../media/platform/qcom/camss/camss-csid.c | 608 +-----------------
> .../media/platform/qcom/camss/camss-csid.h | 129 +++-
> 5 files changed, 885 insertions(+), 586 deletions(-)
> create mode 100644 drivers/media/platform/qcom/camss/camss-csid-4-1.c
> create mode 100644 drivers/media/platform/qcom/camss/camss-csid-4-7.c
>
<snip>
> diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
> index 479ac1f83836..613ef377b051 100644
> --- a/drivers/media/platform/qcom/camss/camss-csid.h
> +++ b/drivers/media/platform/qcom/camss/camss-csid.h
> @@ -11,6 +11,7 @@
> #define QC_MSM_CAMSS_CSID_H
>
> #include <linux/clk.h>
> +#include <linux/interrupt.h>
> #include <media/media-entity.h>
> #include <media/v4l2-ctrls.h>
> #include <media/v4l2-device.h>
> @@ -44,18 +45,42 @@
> #define DATA_TYPE_RAW_16BIT 0x2e
> #define DATA_TYPE_RAW_20BIT 0x2f
>
> -enum csid_payload_mode {
> - CSID_PAYLOAD_MODE_INCREMENTING = 0,
> - CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 1,
> - CSID_PAYLOAD_MODE_ALL_ZEROES = 2,
> - CSID_PAYLOAD_MODE_ALL_ONES = 3,
> - CSID_PAYLOAD_MODE_RANDOM = 4,
> - CSID_PAYLOAD_MODE_USER_SPECIFIED = 5,
> +#define CSID_RESET_TIMEOUT_MS 500
> +
> +enum csid_testgen_mode {
> + CSID_PAYLOAD_MODE_DISABLED = 0,
> + CSID_PAYLOAD_MODE_INCREMENTING = 1,
> + CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 2,
> + CSID_PAYLOAD_MODE_ALL_ZEROES = 3,
> + CSID_PAYLOAD_MODE_ALL_ONES = 4,
> + CSID_PAYLOAD_MODE_RANDOM = 5,
> + CSID_PAYLOAD_MODE_USER_SPECIFIED = 6,
> + CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN1 = 6, /* excluding disabled */
> +};
> +
> +static const char * const csid_testgen_modes[] = {
> + "Disabled",
> + "Incrementing",
> + "Alternating 0x55/0xAA",
> + "All Zeros 0x00",
> + "All Ones 0xFF",
> + "Pseudo-random Data",
> + "User Specified",
> +};
This gives this sparse warning:
'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
This array needs to be moved to camss-csid.c and declared as an extern
here. Also, this menu array needs to be terminated with a NULL, and the
right capitalization needs to be used (first character of each word must
be a capital). This is a suggested patch I made to verify that this solves
this issue, but really both patch 9 and 10 need to be modified.
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
---
drivers/media/platform/qcom/camss/camss-csid.c | 14 ++++++++++++++
drivers/media/platform/qcom/camss/camss-csid.h | 13 +------------
2 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c
index fb94dc03ccd4..1513b3d47fc2 100644
--- a/drivers/media/platform/qcom/camss/camss-csid.c
+++ b/drivers/media/platform/qcom/camss/camss-csid.c
@@ -27,6 +27,20 @@
#define MSM_CSID_NAME "msm_csid"
+const char * const csid_testgen_modes[] = {
+ "Disabled",
+ "Incrementing",
+ "Alternating 0x55/0xAA",
+ "All Zeros 0x00",
+ "All Ones 0xFF",
+ "Pseudo-Random Data",
+ "User Specified",
+ "Complex Pattern",
+ "Color Box",
+ "Color Bars",
+ NULL
+};
+
u32 csid_find_code(u32 *codes, unsigned int ncodes,
unsigned int match_format_idx, u32 match_code)
{
diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
index c2a025f6846b..81a3704ac0e3 100644
--- a/drivers/media/platform/qcom/camss/camss-csid.h
+++ b/drivers/media/platform/qcom/camss/camss-csid.h
@@ -62,18 +62,7 @@ enum csid_testgen_mode {
CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN2 = 9, /* excluding disabled */
};
-static const char * const csid_testgen_modes[] = {
- "Disabled",
- "Incrementing",
- "Alternating 0x55/0xAA",
- "All Zeros 0x00",
- "All Ones 0xFF",
- "Pseudo-random Data",
- "User Specified",
- "Complex pattern",
- "Color box",
- "Color bars",
-};
+extern const char * const csid_testgen_modes[];
struct csid_format {
u32 code;
--
2.30.1
Regards,
Hans
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